Flexible exerciser



FIG. 1 is a perspective view of a flexible exerciser;

FIG. 2 is a front elevational view thereof, shown in an alternate position;

FIG. 3 is a rear elevational view of FIG. 2;

FIG. 4 is a top plan view thereof, shown in an alternate position, wherein the bottom view is a mirror image thereof; and,

FIG. 5 is a fragmentary top plan view, shown in an alternate position, with the center portion omitted for ease of illustation. 

The ornamental design for a flexible exerciser, as shown and described. 